Alert archive / Alabama / Special Weather Statements in 2012

Special Weather Statement, NWS Huntsville, AL

July 10, 2012Marshall County, Alabama

NWS Huntsville, AL issued this special weather statement at Jul 10, 2012, 2:50 PM CDT for Marshall County, Alabama. It was in force for 40 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 10, 2012, 2:50 PM CDT (19:50 UTC)
Expired: Jul 10, 2012, 3:30 PM CDT
In force: 40 min
Issued by: NWS Huntsville, AL

County Marshall County, AL

The radar

The Northeast Alabama radar (KHTX), 45 km from the middle of the area, began a volume at 19:54 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Birmingham, AL (KBMX), launched 12:00Z, 7.8 hours before the alert went out and 160 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 923 J/kg
Mixed-layer CIN: -25 J/kg
Mixed-layer LCL: 611 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: -32 m²/s²
0-3 km storm-relative helicity: 23 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Huntsville, AL wrote its last area forecast discussion before this special weather statement went out at Jul 10, 2:16 PM CDT, 34 minutes earlier.

Area forecast discussion, Jul 10, 2:16 PM CDT, 34 minutes before

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Hazardous weather outlook, Jul 10, 11:50 AM CDT, 3 hours before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HUNTSVILLE AL
1150 AM CDT TUE JUL 10 2012

ALZ001>010-016-TNZ076-096-097-111000-
LAUDERDALE-COLBERT-FRANKLIN AL-LAWRENCE-LIMESTONE-MADISON-MORGAN-
MARSHALL-JACKSON-DEKALB-CULLMAN-MOORE-LINCOLN-FRANKLIN TN-
1150 AM CDT TUE JUL 10 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH ALABAMA AND PORTIONS
OF SOUTHERN MIDDLE TENNESSEE.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

SCATTERED TO NUMEROUS THUNDERSTORMS WILL CONTINUE TO DEVELOP ACROSS
MUCH OF THE NORTHERN AND EASTERN HALF OF THE OUTLOOK AREA INTO THE
AFTERNOON HOURS...AS A WEAK FRONTAL BOUNDARY GRADUALLY MOVES SOUTH.
ADDITIONAL THUNDERSTORMS ARE EXPECTED ACROSS THE REMAINDER OF THE
AREA INTO THE EVENING PERIOD WITH THE FRONT MOVING SOUTHWARD.

SOME STORMS MAY BE STRONG TO MARGINALLY SEVERE...MAINLY ACROSS
SOUTHERN MIDDLE TENNESSEE LEADING INTO NORTHEAST ALABAMA...WITH
BRIEF DAMAGING WIND GUSTS AND LOCALLY HEAVY RAINFALL THE PRIMARY
WEATHER THREATS. LOCALIZED FLOODING MAY ALSO DEVELOP IN AREAS WHICH
RECEIVE MULTIPLE ROUNDS OF HEAVY RAINFALL OR THUNDERSTORMS.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY...

THUNDERSTORM ACTIVITY IS EXPECTED TO LINGER THROUGH THE REMAINDER OF
THE WEEK...WITH A FRONT REMAINING FAIRLY STAGNANT ACROSS THE AREA.
HEAVY RAINFALL AND THE POTENTIAL FOR FLASH FLOODING FROM REPETITIVE
THUNDERSTORM ACTIVITY WILL BE THE PRIMARY THREATS DURING THIS PERIOD.

.SPOTTER CALL TO ACTION STATEMENT...

ACTIVATION OF STORM SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL IS
NOT ANTICIPATED AT THIS TIME.

In the hours before

Special weather statement, Jul 10, 1:08 PM CDT, 1 hour 42 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
108 PM CDT TUE JUL 10 2012

ALZ009-TNZ097-101845-
FRANKLIN-JACKSON-
108 PM CDT TUE JUL 10 2012

...SIGNIFICANT WEATHER ADVISORY FOR FRANKLIN AND JACKSON COUNTIES
UNTIL 145 PM CDT...

AT 106 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR HYTOP...OR 16 MILES WEST OF BRIDGEPORT...
MOVING EAST AT 15 MPH.

WINDS UP TO 50 MPH...FREQUENT CLOUD TO GROUND LIGHTNING...AND HEAVY
DOWNPOURS ARE EXPECTED WITH THIS STORM.

* LOCATIONS IN OR NEAR THE PATH INCLUDE...
  BASS.
  ANDERSON.
  STEVENSON...SHERWOOD.
  RUSSELL CAVE NATIONAL MONUMENT.

REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO THE
STORM TO BE STRUCK BY LIGHTNING. SEEK SAFE SHELTER IMMEDIATELY.

THIS THUNDERSTORM COULD INTENSIFY QUICKLY...SO BE READY TO ACT IF A
WARNING IS ISSUED.

STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL
TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS
CONCERNING THIS WEATHER SITUATION.

&&

LAT...LON 3483 8573 3484 8609 3496 8614 3511 8587
      3509 8586 3500 8586 3499 8581
TIME...MOT...LOC 1808Z 251DEG 13KT 3492 8600

Special weather statement, Jul 10, 1:14 PM CDT, 1 hour 36 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
114 PM CDT TUE JUL 10 2012

TNZ097-101845-
FRANKLIN-
114 PM CDT TUE JUL 10 2012

...SIGNIFICANT WEATHER ADVISORY FOR FRANKLIN COUNTY UNTIL 145 PM
CDT...

AT 112 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR WOODS RESERVOIR...OR 9 MILES NORTH OF
WINCHESTER...MOVING EAST AT 15 MPH.

WINDS UP TO 50 MPH...FREQUENT CLOUD TO GROUND LIGHTNING...AND HEAVY
DOWNPOURS ARE EXPECTED WITH THIS STORM.

* LOCATIONS IN OR NEAR THE PATH INCLUDE...
  WOODS RESERVOIR.
  ALTO.

REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO THE
STORM TO BE STRUCK BY LIGHTNING. SEEK SAFE SHELTER IMMEDIATELY.

THIS THUNDERSTORM COULD INTENSIFY QUICKLY...SO BE READY TO ACT IF A
WARNING IS ISSUED.

STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL
TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS
CONCERNING THIS WEATHER SITUATION.

&&

LAT...LON 3535 8603 3532 8600 3532 8596 3526 8589
      3525 8622 3533 8624 3535 8621 3534 8620
      3536 8618 3537 8615
TIME...MOT...LOC 1814Z 250DEG 11KT 3531 8608

Special weather statement, Jul 10, 1:37 PM CDT, 1 hour 13 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
137 PM CDT TUE JUL 10 2012

TNZ076-096-097-101915-
FRANKLIN-LINCOLN-MOORE-
137 PM CDT TUE JUL 10 2012

...SIGNIFICANT WEATHER ADVISORY FOR FRANKLIN...LINCOLN AND MOORE
COUNTIES UNTIL 215 PM CDT...

AT 136 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
CLUSTER OF STRONG THUNDERSTORMS FROM CENTRAL LINCOLN COUNTY INTO
NORTHERN FRANKLIN COUNTY...MOVING EAST AROUND 15 MPH.

PENNY SIZE HAIL...WINDS UP TO 50 MPH...FREQUENT CLOUD TO GROUND
LIGHTNING...AND HEAVY DOWNPOURS ARE EXPECTED WITH THIS STORM.

* LOCATIONS IN OR NEAR THE PATH INCLUDE...
  BELVIDERE.
  TIMS FORD LAKE.
  OAK GROVE.
  ESTILL SPRINGS...WINCHESTER.
  WOODS RESERVOIR...DECHERD.

REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO THE
STORM TO BE STRUCK BY LIGHTNING. SEEK SAFE SHELTER IMMEDIATELY.

THESE THUNDERSTORMS COULD INTENSIFY QUICKLY...SO BE READY TO ACT IF A
WARNING IS ISSUED.

STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL
TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS
CONCERNING THIS WEATHER SITUATION.

&&

LAT...LON 3539 8625 3535 8624 3535 8622 3534 8620
      3537 8615 3531 8593 3518 8585 3517 8586
      3509 8650 3523 8658 3540 8627
TIME...MOT...LOC 1836Z 250DEG 11KT 3524 8627

Special weather statement, Jul 10, 2:09 PM CDT, 41 minutes before

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Special weather statement, Jul 10, 2:23 PM CDT, 27 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
223 PM CDT TUE JUL 10 2012

TNZ097-102000-
FRANKLIN-
223 PM CDT TUE JUL 10 2012

...SIGNIFICANT WEATHER ADVISORY FOR FRANKLIN COUNTY UNTIL 300 PM
CDT...

AT 223 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR SHERWOOD...MOVING SOUTHEAST AT 10 MPH.

WINDS UP TO 40 MPH...FREQUENT CLOUD TO GROUND LIGHTNING...AND HEAVY
DOWNPOURS ARE EXPECTED WITH THIS STORM.

* LOCATIONS IN OR NEAR THE PATH INCLUDE...
  SEWANEE.
  ANDERSON.

STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL
TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS
CONCERNING THIS WEATHER SITUATION.

&&

LAT...LON 3521 8586 3499 8586 3499 8592 3511 8604
      3524 8593
TIME...MOT...LOC 1923Z 299DEG 10KT 3512 8590

KTW

Special weather statement, Jul 10, 2:50 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE HUNTSVILLE AL
250 PM CDT TUE JUL 10 2012

ALZ006-008-009-102030-
JACKSON-MADISON-MARSHALL-
250 PM CDT TUE JUL 10 2012

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN
JACKSON...SOUTHEASTERN MADISON AND NORTHEASTERN MARSHALL COUNTIES
UNTIL 330 PM CDT...

AT 250 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
CLUSTERS OF STRONG THUNDERSTORMS NEAR LANGSTON AND WOODVILLE MOVING
SOUTHWEST AT 10 MPH.

WINDS UP TO 50 MPH...FREQUENT CLOUD TO GROUND LIGHTNING...AND HEAVY
DOWNPOURS ARE EXPECTED WITH THIS STORM.

* LOCATIONS IN OR NEAR THE PATH INCLUDE...
  GRANT...WOODVILLE.

STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL
TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS
CONCERNING THIS WEATHER SITUATION.

&&

LAT...LON 3438 8628 3461 8644 3473 8609 3460 8598
TIME...MOT...LOC 1948Z 061DEG 7KT 3459 8614

KTW

The office that day

Everything else NWS Huntsville, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 10, 10:28 AM CDT	Special Weather Statement	HUN	DeKalb	32 min
Jul 10, 12:04 PM CDT	Special Weather Statement	HUN	DeKalb	26 min
Jul 10, 12:41 PM CDT	Special Weather Statement	HUN	Jackson	34 min
Jul 10, 1:08 PM CDT	Special Weather Statement	HUN	Jackson	37 min
Jul 10, 2:09 PM CDT	Special Weather Statement	HUN	Jackson	36 min
Jul 10, 2:57 PM CDT	Special Weather Statement	HUN	DeKalb	33 min
Jul 10, 3:31 PM CDT	Special Weather Statement	HUN	Jackson	44 min
Jul 10, 3:34 PM CDT	Special Weather Statement	HUN	Limestone	41 min
Jul 10, 4:05 PM CDT	Special Weather Statement	HUN	Marshall	25 min
Jul 10, 4:53 PM CDT	Special Weather Statement	HUN	Morgan	37 min
Jul 10, 5:06 PM CDT	Special Weather Statement	HUN	Lawrence	39 min
Jul 10, 5:09 PM CDT	Special Weather Statement	HUN	Morgan	36 min
Jul 10, 5:25 PM CDT	Special Weather Statement	HUN	Lawrence	35 min
Jul 10, 5:51 PM CDT	Special Weather Statement	HUN	Lauderdale	24 min
Jul 10, 6:11 PM CDT	Special Weather Statement	HUN	Cullman	34 min
Jul 10, 6:44 PM CDT	Special Weather Statement	HUN	Lawrence	31 min
Jul 10, 10:56 AM CDT	Special Weather Statement	HUN	Franklin	34 min
Jul 10, 1:14 PM CDT	Special Weather Statement	HUN	Franklin	31 min
Jul 10, 1:37 PM CDT	Special Weather Statement	HUN	Franklin, Moore	38 min
Jul 10, 2:23 PM CDT	Special Weather Statement	HUN	Franklin	37 min

Nearby

Special Weather Statements in Alabama, 2012 Every special weather statement in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.